How to change the scale on a contour plot colorbar

[James Watts (Contractor)]

Can anyone tell me how to change the numeric scale on the colorbar legend on a contour plot? 

 

I have tried various combinations of caxis and zaxis, cticks, zticks, cticklabels, zticklabels and I either see nothing change or I get an error.

 

I can’t find a description of this in the Octave or Matlab documentation.

 

(On the attached image, I’m trying to get the numeric scale to match the color scale).

 

Thanks,

James.

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